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Magnetostriction of hexaferrites in the region of spin-reorientational phase transitions

A. G. ChesnokovSiberian Physicotechnical Institute, pl. Revolyutsii 1, Tomsk, 634050, RussiaЕ. П. НайденSiberian Physicotechnical Institute, pl. Revolyutsii 1, Tomsk, 634050, Russia

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The temperature dependence of magnetostriction of textured polycrystalline Co0.72Zn1.28-W hexaferrite has been studied by means of x-ray dilatometry and strain gauges. It is shown that the magnetostriction constants exhibit an anomalous behavior in the region of spin-reorientational phase transitions and reach as high as 10−5–10−4.

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